80645587522480 has 20 divisors (see below), whose sum is σ = 187500990989952. Its totient is φ = 32258235008960.

The previous prime is 80645587522421. The next prime is 80645587522481. The reversal of 80645587522480 is 8422578554608.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (80645587522481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504034921936 + ... + 504034922095.

Almost surely, 2^{80645587522480} is an apocalyptic number.

80645587522480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80645587522480 is an abundant number, since it is smaller than the sum of its proper divisors (106855403467472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80645587522480 is a wasteful number, since it uses less digits than its factorization.

80645587522480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008069844044 (or 1008069844038 counting only the distinct ones).

The product of its (nonzero) digits is 172032000, while the sum is 64.

The spelling of 80645587522480 in words is "eighty trillion, six hundred forty-five billion, five hundred eighty-seven million, five hundred twenty-two thousand, four hundred eighty".